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DE69204000D1 - Direct exhaust gas sampling for current measurements. - Google Patents

Direct exhaust gas sampling for current measurements.

Info

Publication number
DE69204000D1
DE69204000D1 DE69204000T DE69204000T DE69204000D1 DE 69204000 D1 DE69204000 D1 DE 69204000D1 DE 69204000 T DE69204000 T DE 69204000T DE 69204000 T DE69204000 T DE 69204000T DE 69204000 D1 DE69204000 D1 DE 69204000D1
Authority
DE
Germany
Prior art keywords
sample
flow
gas
pressure
exhaust gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69204000T
Other languages
German (de)
Other versions
DE69204000T2 (en
Inventor
James William Butler
Alex David Colvin
Thomas John Korniski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Werke GmbH
Original Assignee
Ford Werke GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ford Werke GmbH filed Critical Ford Werke GmbH
Application granted granted Critical
Publication of DE69204000D1 publication Critical patent/DE69204000D1/en
Publication of DE69204000T2 publication Critical patent/DE69204000T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0011—Sample conditioning
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0011—Sample conditioning
    • G01N33/0016—Sample conditioning by regulating a physical variable, e.g. pressure or temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • G01N1/2252—Sampling from a flowing stream of gas in a vehicle exhaust
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/38—Diluting, dispersing or mixing samples
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • G01N2001/2264—Sampling from a flowing stream of gas with dilution
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N2021/3595—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using FTIR

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Pathology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

A method and associated apparatus for on-line gas analysis of a multicomponent gas emission flow, and comprising: continuously withdrawing and regulating the pressure of a first sample flow from the emission flow, continuously withdrawing a second sample flow from the first sample flow by means (10), the second flow sample being diluted with mass controlled amounts of diluent (N2 or air) to lower the dew point of the gas sample to below room temperature; controlling the absolute pressure of the diluted sample to the range of 920-950 mbar by pressure controlling means (15) ; frequently periodically analyzing the diluted sample flow, controlled as to pressure, by fourier-transform infrared spectrometric device (16) to render a concentration measurement for each desired gas species; and correcting each concentration measurement for dilution to derive an undiluted concentration measurement representative of the actual exhaust gas, said correction being accomplished means (17) by measuring the actual air/fuel ratio of the gas emission flow to provide a theoretical carbon concentration in the undiluted exhaust gas and thereafter ratioing the theoretical total carbon concentration to the measured carbon concentration in the sample to provide the needed correction factor. <IMAGE>
DE69204000T 1991-09-09 1992-09-01 Direct exhaust gas sampling for current measurements. Expired - Lifetime DE69204000T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/756,701 US5138163A (en) 1991-09-09 1991-09-09 Direct sampling of engine emissions for instantaneous analysis

Publications (2)

Publication Number Publication Date
DE69204000D1 true DE69204000D1 (en) 1995-09-14
DE69204000T2 DE69204000T2 (en) 1996-01-18

Family

ID=25044683

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69204000T Expired - Lifetime DE69204000T2 (en) 1991-09-09 1992-09-01 Direct exhaust gas sampling for current measurements.

Country Status (6)

Country Link
US (1) US5138163A (en)
EP (1) EP0532216B1 (en)
AT (1) ATE126351T1 (en)
CA (1) CA2077185C (en)
DE (1) DE69204000T2 (en)
MX (1) MX9204699A (en)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5637809A (en) * 1991-11-12 1997-06-10 United Sciences, Inc. Vacuum extraction sampling system
US5297432A (en) * 1991-11-12 1994-03-29 United Sciences, Inc. Vacuum dilution extraction gas sampling method
US5252828A (en) * 1992-04-07 1993-10-12 Hughes Aircraft Company Mobile exhaust tracking system
FR2703460A1 (en) * 1993-04-01 1994-10-07 Utac Device for directly measuring the opacity of gases
US5697346A (en) * 1993-05-28 1997-12-16 Servojet Products International Method for using sonic gas-fueled internal combustion engine control system
US5539638A (en) * 1993-08-05 1996-07-23 Pavilion Technologies, Inc. Virtual emissions monitor for automobile
JP3318431B2 (en) * 1994-02-22 2002-08-26 東邦瓦斯株式会社 Engine failure diagnosis device
US5456124A (en) * 1994-03-28 1995-10-10 Ford Motor Company Probe for exhaust gas sampling
US5431734A (en) * 1994-04-28 1995-07-11 International Business Machines Corporation Aluminum oxide low pressure chemical vapor deposition (LPCVD) system-fourier transform infrared (FTIR) source chemical control
US5599179A (en) * 1994-08-01 1997-02-04 Mississippi State University Real-time combustion controller
AT443U1 (en) * 1994-12-21 1995-10-25 Avl Verbrennungskraft Messtech GAS EXTRACTION UNIT FOR EXHAUST GASES FROM COMBUSTION ENGINES
AT444U1 (en) * 1994-12-21 1995-10-25 Avl Verbrennungskraft Messtech BACKWASHABLE FILTER DEVICE
US5621166A (en) * 1995-04-06 1997-04-15 Ford Motor Company Exhaust emissions analysis apparatus and method
GB9512929D0 (en) * 1995-06-24 1995-08-30 Sun Electric Uk Ltd Multi-gas sensor systems for automatic emissions measurement
DE19523599A1 (en) * 1995-06-30 1997-01-02 Ruhrgas Ag Mass flow rate determination of emitted component in engine exhaust gases
US5712433A (en) * 1995-08-07 1998-01-27 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Exhaust gas measuring apparatus
US5837903A (en) * 1995-09-22 1998-11-17 The Scott Fetzer Company Inc. Device for measuring exhaust flowrate using laminar flow element
US6200819B1 (en) * 1995-09-29 2001-03-13 Horiba Instruments, Inc. Method and apparatus for providing diluent gas to exhaust emission analyzer
US6226981B1 (en) * 1999-02-02 2001-05-08 Caterpillar Inc. Air to fuel ratio control for gas engine and method of operation
JP4079404B2 (en) 1999-06-04 2008-04-23 株式会社堀場製作所 Multi-component gas analysis method by FTIR method
US6346142B1 (en) 1999-12-28 2002-02-12 Honda Giken Kogyo Kabushiki Kaisha System for removing water from a gaseous sample
US6516656B1 (en) 1999-12-28 2003-02-11 Honda Giken Kogyo Kabushiki Kaisha System for vehicle emission sampling and measurement
DE10230763A1 (en) * 2002-07-09 2004-01-22 Volkswagen Ag Method and device for measuring pollutants in exhaust gases from internal combustion engines
JP4490912B2 (en) * 2002-10-10 2010-06-30 エル・ピィ・ピィ・コンバスチョン・リミテッド・ライアビリティ・カンパニー System and method of use for vaporizing liquid fuel for combustion
DE10331643B4 (en) * 2003-07-08 2005-08-04 NOVA-MBB Meßtechnik GmbH & Co.KG Device and method for detecting particles contained in internal combustion engine exhaust gases
US20050274169A1 (en) * 2004-06-10 2005-12-15 James Butler Vehicle/engine sampling system for precise analysis of exhaust components
US20050274899A1 (en) * 2004-06-10 2005-12-15 James Butler Spectroscopic system and method for analysis in harsh, changing environments
PL1825194T3 (en) * 2004-12-08 2021-09-20 Lpp Combustion, Llc Method and apparatus for conditioning liquid hydrocarbon fuels
EP1801561A1 (en) * 2005-12-22 2007-06-27 Delphi Technologies, Inc. Thermally Insulated Components
US8529646B2 (en) * 2006-05-01 2013-09-10 Lpp Combustion Llc Integrated system and method for production and vaporization of liquid hydrocarbon fuels for combustion
GR1006900B (en) * 2007-02-14 2010-07-21 Ζησης Σαμαρας Diluter for exhaust gas sampling and method therefor.
GB0806210D0 (en) * 2008-04-04 2008-05-14 Univ Aston Sampling of fluids for analysis
US8074505B2 (en) * 2008-07-09 2011-12-13 Wisconsin Alumni Research Foundation Internal combustion engine exhaust filtration analysis system
US9279406B2 (en) 2012-06-22 2016-03-08 Illinois Tool Works, Inc. System and method for analyzing carbon build up in an engine
CN103712828B (en) * 2013-12-13 2017-03-15 天津农学院 Polycyclic aromatic hydrocarbons (PAH) acquisition system and method in a kind of multicylinder engine tail gas
US9217810B2 (en) * 2014-05-21 2015-12-22 Iball Instruments, Llc Wellbore FTIR gas detection system
JP6752591B2 (en) * 2015-04-24 2020-09-09 株式会社堀場製作所 Exhaust gas measuring device
CN105510104B (en) * 2016-02-05 2019-08-13 毛灿松 The variable online separator of amount of gas evolved gases dissolved in insulation oil and wall-mounted analysis system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389881A (en) * 1981-07-31 1983-06-28 Ford Motor Company Method of measuring an air to fuel ratio
US4586367A (en) * 1984-03-19 1986-05-06 Horiba Instruments Incorporated Proportional exhaust sampler and control means
JPS62157546A (en) * 1985-12-31 1987-07-13 Horiba Ltd Modal mass analysis for automobile emission gas
JPS63148148A (en) * 1986-12-10 1988-06-21 Toyota Motor Corp Smoke measuring instrument
US4928015A (en) * 1987-08-19 1990-05-22 Ford Motor Company Measuring multicomponent constituency of gas emission flow
US4801805A (en) * 1987-08-19 1989-01-31 Ford Motor Company Method of measuring multicomponent constituency of gas emission flow
US5090258A (en) * 1989-09-29 1992-02-25 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Multiple flow-dividing dilution tunnel system

Also Published As

Publication number Publication date
CA2077185A1 (en) 1993-03-10
ATE126351T1 (en) 1995-08-15
US5138163A (en) 1992-08-11
EP0532216B1 (en) 1995-08-09
DE69204000T2 (en) 1996-01-18
MX9204699A (en) 1993-03-01
CA2077185C (en) 1996-02-06
EP0532216A1 (en) 1993-03-17

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8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8327 Change in the person/name/address of the patent owner

Owner name: FORD-WERKE GMBH, 50735 KOELN, DE

R071 Expiry of right

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